Inspired by Willy Wonka and his chocolate factory, Emerald Lounge will transform into The Emerald Factory for a night of Halloween fun, including a costume contest, drinks, desserts, and music by DJ Case. A a portion of all ticket sales will benefit One Tail at a Time, a Massachusetts-based non-profit rescue for dogs.

This annual month-long fair, hosted by the Witches of Salem and Christian Day (pictured), features everything from tarot card and palm readings to crystal ball gazing. Wander through magic shops, meet practicing witches, or simply take in the Salem scene.

Dance the night away as Julie Kramer spins ‘80s tunes at Ned Devine’s on Halloween night. Dress in your best ‘80s costume (neon and big hair is a must) for a chance to win a $500 prize for the best costume.

Show off your Halloween costume and win prizes as you spend the evening at the Seaport District’s bars and restaurants. Trick-or-treaters can check in at TAMO for wristbands, maps, and goodie bags before being shuttled by Duck Boats between participating venues, including the Atlantic Beer Garden, Barking Crab, and Whiskey Priest.

John Harvard’s Brewery & Ale House will host a night of horror, complete with festive sips, Halloween-inspired treats, and a costume contest. Dance the night away doing your best “Monster Mash” and enter to win a $100 gift card to John Harvard’s for best costume.